Table 3. Multivariate unconditional logistic regression analysis for risk factors of isolated diastolic hypertension in the three ethnicities.

	Han			Uygur			Kazakh
	OR	95% CI	P	OR	95% CI	P	OR	95% CI	P
Sex	0.782	0.615–0.995	0.045	1.712	1.139–2.575	1.712	0.691	0.529–0.901	0.006
Age			0.000			0.002			0.194
More than 75y	1			1			1
35–44 y	4.160	2.169–7.980	0.000	1.579	0.623–3.998	0.335	1.742	0.686–4.427	0.243
45–54 y	2.981	1.540–5.771	0.001	1.870	0.736–4.751	0.188	1.703	0.665–4.358	0.267
55–64 y	2.818	1.446–5.490	0.002	1.054	0.404–2.748	0.914	1.593	0.615–4.125	0.338
65–74 y	1.723	0.870–3.414	0.119	0.595	0.202–1.753	0.347	1.028	0.375–2.823	0.957
Smoking	1.242	0.970–1.591	0.085	3.626	2.295–5.729	0.000	1.105	0.850–1.436	0.456
Drinking	1.051	0.825–1.339	0.689	1.017	0.635–1.628	0.944	0.816	0.579–1.151	0.816
Coffee/Tea consumption			0.124			0.001			0.162
Never	1			1			1
Occasionally	0.916	0.741–1.132	0.416	2.728	1.517–4.905	0.001	1.218	0.579–2.564	0.603
Often	0.794	0.636-.991	0.041	2.876	1.671–4.950	0.000	0.755	0.460–1.240	0.267
BMI			0.187			0.665			0.002
Normal	1			1			1
Overweight	0.989	0.805–1.215	0.914	1.098	0.779–1.549	0.593	1.719	1.278–2.311	0.000
Obesity	1.217	0.949–1.562	0.122	0.936	0.638–1.372	0.733	1.485	1.089–2.027	0.013
Diabetes	.834	0.588–1.183	0.309	1.154	0.636–2.094	0.636	0.822	0.422–1.600	0.564
TG	1.065	0.875–1.296	0.529	1.049	0.762–1.446	0.769	0.843	0.605–1.175	0.314
TC	1.436	1.185–1.740	0.000	1.131	0.784–1.631	0.510	0.918	0.713–1.182	0.507
HDL-c	0.980	0.809–1.186	0.834	1.208	0.889–1.641	0.228	1.105	0.859–1.422	0.437
LDL-c	0.991	0.823–1.192	0.921	1.095	0.811–1.479	0.555	0.809	0.633–1.034	0.091

BMI, body mass index; TG, triglycerides; TC, total cholesterol; HDL-c, high density lipoprotein-cholesterol; LDL-c, low density lipoprotein-cholesterol.